Physics Questions and Answers
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
4.13x10 6J
4.13x10 5J
3.56x10 4J
3.56x10 2J
Correct answer is B
Q = mL + mcθ = 1 x 3.5 x 10 5 + 1 x 2.1 x 10 3 x 30
Which of the following is NOT a factor that can increase the rate of evaporation of water in a lake?
increase in the pressure of the atmosphere
rise in temperature
increase in the average speed of the molecules of water
increase in the kinetic energy of the molecules of water
Correct answer is A
No explanation has been provided for this answer.
Calculate the temperature change when 500J of heat is supplied to 100g of water
12.1oC
2.1oC
1.2oC
0.1oC
Correct answer is C
\(\theta = \frac{Q}{MC}\)
\(\theta = \frac{500}{0.1 \times 4200}\)
1896.5cm3
1767.3cm3
1676.3cm3
1456.5cm3
Correct answer is C
\(V_2 = \frac{P_1V_1T_2}{P_2T_2}\)
\(V_2 = \frac{700 \times 2000 \times 273}{760 \times 300}\)
1:2
2:1
8:9
9:8
Correct answer is A
P: \(\frac{\alpha h \theta}{\alpha h \theta}\)
\(\frac{2 \times 3 \times \theta}{3 \times 4 \times \theta}\)
\(\frac{1}{2}\)